1, common misunderstanding of drinking water
Myth 1: Drinking too much water is too fast.
Drinking water too fast or too much leads to too fast water absorption, and the water in the body increases rapidly, which greatly increases the burden on the heart and may make people feel chest tightness, suffocation and difficulty breathing. Patients with heart disease should pay special attention to drinking a small amount of water many times.
Myth 2: Drink too hot or too cold water.
Overheated water will burn the mouth, esophagus and gastric mucosa and reduce the function of the stomach. Too cold water will stimulate the gastric mucosa, cause gastric contraction, and lead to gastric dysfunction.
Myth 3: Drink too much water before going to bed.
Because the increase of water in the body will increase the burden on the kidney, affect the function of the kidney, and increase the number of urination, thus affecting the quality of sleep. In addition, getting up in the morning can also cause eyelid and facial edema.
Myth 4: strenuous exercise and drinking water immediately after meals
This will increase the burden on the stomach, dilute the gastric juice, reduce the bactericidal effect of gastric juice, and hinder the digestion of food. Drinking water too fast will make the blood volume increase too fast, suddenly increase the burden on the heart, cause temporary disorder of electrolytes such as potassium and sodium in the body, and even cause heart failure, chest tightness and abdominal distension. Therefore, you should not drink too much or too fast after exercise, let alone drink cold drinks, otherwise it will affect the heat dissipation of the body surface and cause colds, abdominal pain or other diseases.
Myth 5: Drinking repeatedly heated drinking water for a long time.
If you drink tap water or bottled water at home, in order to prevent secondary pollution, you can consider boiling the water before drinking.
However, if boiling water is heated repeatedly, it will lead to a large loss of nutrients in the water, and at the same time, some heavy metals will precipitate and produce nitrite. After the latter enters the body, it will generate carcinogenic nitrosamines under the action of gastric juice and food. Therefore, drinking repeatedly heated water for a long time is harmful to human body.
2, healthy drinking water needs to know
1. Detoxification: a glass of water in the morning. Many people know that drinking a glass of water in the morning is good for health. After a night of metabolism, the garbage in the body needs external force to be discharged, and water is the best "cleaner". At this time, the cell is like a dry sponge, which will catch the water it drinks and excrete it in about 40 minutes. This is an important detoxification process. Light salt water, honey water and boiled water are all suitable for drinking in the morning. Experts suggest that you should not drink too cold or too hot water in the morning, and the temperature should be around 40 degrees Celsius.
2. fidgety: drink plenty of water. Endorphins produced by the brain are called "pleasure hormones", while adrenaline is usually called "pain hormones". When a person is upset, adrenaline will soar, but it can be excreted like other poisons. One way is to drink more water. If manual labor is assisted, adrenaline will be discharged with sweat, or with tears when crying.
3. Decompression: Drink a glass of water before making a decision. A study in university of east london, England, found that drinking a glass of water before an exam can improve students' cognitive ability and make them perform better in the exam. For office workers, drinking a glass of water before they are stressed or need to make a decision can help them clear their minds.
4. Not thirsty: You have to drink water, too. The Hong Kong Department of Health once conducted a survey, 1/3 Adults drink less than 6 glasses of water every day. Office workers are busy at work and often don't take a sip of water for a long time. According to the American website "Water Health", when people feel thirsty, their bodies lose at least 1% water. Therefore, office workers should form good drinking and urination habits, drinking water once every 1 hour and urinating once every 2-3 hours.